In an polar curve r=f ( ) what is the relation between & the coordin – McqOptions

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1.	In an polar curve r=f ( ) what is the relation between & the coordinates (x,y)?
A.	tan u2061 = ( frac{x}{y} )
B.	(1+sin u2061 ) = ( frac{y}{x} )
C.	(1+sec<sup>2</sup> ) = ( frac{y^2}{x^2} )
D.	(1+cos u2061 ) = ( frac{x}{y} )
Answer» D. (1+cos u2061 ) = ( frac{x}{y} )

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